Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John Patrick Seymour, MD, MPH

Individual provider Preventive Medicine/Occupational Environmental Medicine Physician · NPI 1285647719

Dr. John Patrick Seymour, MD, MPH is a Preventive Medicine/Occupational Environmental Medicine Physician in Portland, Oregon. Licensed in Oregon and Washington. Registered with an NPI since 2006.

Licensed in
OR, WA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

See every abbreviation used in this directory →

Practice location Address checks out

3600 N Interstate Ave
Portland, OR 97227-1106
Phone: (503) 249-3531
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Preventive Medicine/Occupational Environmental Medicine Physician (primary) Taxonomy 2083P0500X · Licence MD16663 (OR)
Preventive Medicine/Occupational Environmental Medicine Physician Taxonomy 2083P0500X · Licence MD00047689 (WA)

Record details

NPI number1285647719
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MPH
Sole proprietorNo
NPI enumeratedAugust 14, 2006
Last updated in NPPESJuly 8, 2007

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